import csv
def price_increase(filename) -> list:
    list_t = []
    with open(filename, encoding="utf8") as csvfile:
        reader = csv.reader(csvfile, delimiter=';', quotechar='"')
        reader = list(reader)
        for index in range(1, len(reader)):
            if int(reader[index][1]) > int(reader[index][2]):
                list_t.append(reader[index][0])
    return list_t
assert price_increase('3.csv') == ['Компас', 'Дневник']